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Effects of plyometric training on passive stiffness of gastrocnemii and the musculo-articular complex of the ankle joint.
- Source :
-
Scandinavian Journal of Medicine & Science in Sports . Dec2009, Vol. 19 Issue 6, p811-818. 8p. 1 Black and White Photograph, 3 Charts, 3 Graphs. - Publication Year :
- 2009
-
Abstract
- This study aimed to determine simultaneously the effects of plyometric training on the passive stiffness of the ankle joint musculo-articular complex, the gastrocnemii muscle–tendon complex (MTC) and the Achilles tendon in order to assess possible local adaptations of elastic properties. Seventeen subjects were divided into a trained (TG) group and a control (CG) group. They were tested before and after 8 weeks of a plyometric training period. The ankle joint range of motion (RoM), the global musculo-articular passive stiffness of the ankle joint, the maximal passive stiffness of gastrocnemii and the stiffness of the Achilles tendon during isometric plantar flexion were determined. A significant increase in the jump performances of TG relative to CG was found (squat jumps: +17.6%, P=0.008; reactive jumps: +19.8%, P=0.001). No significant effect of plyometric training was observed in the ankle joint RoM, musculo-articular passive stiffness of the ankle joint or Achilles tendon stiffness ( P>0.05). In contrast, the maximal passive stiffness of gastrocnemii of TG increased after plyometric training relative to CG (+33.3%, P=0.001). Thus, a specific adaptation of the gastrocnemii MTC occurred after plyometric training, without affecting the global passive musculo-articular stiffness of the ankle joint. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09057188
- Volume :
- 19
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Scandinavian Journal of Medicine & Science in Sports
- Publication Type :
- Academic Journal
- Accession number :
- 45393187
- Full Text :
- https://doi.org/10.1111/j.1600-0838.2008.00853.x